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| 热重法研究落叶松热解动力学特性 | |
| 引用本文： | 李宇宇,李瑞,田启魁,邓旭升,何亮. 热重法研究落叶松热解动力学特性[J]. 东北林业大学学报, 2011, 39(7): 63-66 |
| 作者姓名： | 李宇宇 李瑞 田启魁 邓旭升 何亮 |
| 作者单位： | 北京林业大学,北京,100083;北京林业大学,北京,100083;北京林业大学,北京,100083;北京林业大学,北京,100083;北京林业大学,北京,100083 |
| 基金项目： | 中央高校基本科研业务费专项资金资助 |
| 摘 要： | 采用热重分析仪,研究了氮气气氛下升温速率分别为20、30、40、50℃/min时落叶松木材的热解过程,并使用不同动力学分析方法对落叶松主要热解阶段进行了动力学研究,探讨了各方法之间的相似性.落叶松的热解过程可以分为预热、前热解、热解和后热解4个阶段.Freeman-Carroll法线性拟合结果表明,落叶松主要热解阶段可... |
| 关 键 词： | 落叶松 热解 热重分析 动力学 |
Pyrolysis Kinetics of Larch Wood by Thermogravimetric Analysis |
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| Li Yuyu,Li Rui,Tian Qikui,Deng Xusheng,He Liang. Pyrolysis Kinetics of Larch Wood by Thermogravimetric Analysis[J]. Journal of Northeast Forestry University, 2011, 39(7): 63-66 | |
| Authors: | Li Yuyu Li Rui Tian Qikui Deng Xusheng He Liang |
| Affiliation: | (College of Material Science and Technology,Beijing Forestry University,Beijing 100083,P.R.China) |
| Abstract: | The pyrolysis process of larch wood was studied by thermogravimetric analysis at different heating rates(20,30,40,50 degrees ℃/min) under nitrogen atmosphere.Different methods for kinetic analysis were used to analyze the main pyrolysis phase of larch wood,and the similarities between these methods were briefly discussed.The pyrolysis process of larch wood could be divided into four stages: pre-heating,pre-pyrolysis,pyrolysis and post-pyrolysis.The linear fitting results by Freeman-Carroll method showed that the main pyrolysis stage for larch wood could be described by a first-order reaction,and the activation energy was approximately 100kJ/mol,which was close to the activation energy calculated by Achar-Brindley-Sharp-Wendworth method.The activation energies obtained from Zivkovic and Coats-Redfern methods were very close.The frequency factor values attained by different mathematical analysis methods were greatly varied. |
| Keywords: | Larch Pyrolysis Thermogravimetry Dynamics |
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